• Country
• United States of America (USA)

• Manufacturer / Brand
• Keithley Instruments Inc.; Cleveland (OH)

• Year
• 1977 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 207383

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 90-110; 105-125; 195-235; 210-250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Digital Multimeter 174 - Keithley Instruments Inc.;

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 217 x 100 x 385 mm / 8.5 x 3.9 x 15.2 inch

• Notes
• Features:
  1. Sensitivity to 0.1 microvolt dc (Ranges 3 mV - 1200 V,
  chopper amplifier for the "nanovolt preamp")
  2. 30000 count display
  3. 0.013% basic dc accuracy
  4. Manual, automatic or remote ranging
  
  Options
  1. Model 1728 Rechargeable Battery Pack
  2. Model 1722 Digital interface
  3. Model 1723 IEEE interface
  4. Model 1740 AC (AVG) (Ranges 300 mV - 1000 V)
  5. Model 1744 Ohmmeter (Ranges 300 Ω - 300 MΩ)
  6. Model 1745 Ammeter (Ranges 3 µA - 3 A)

• Net weight (2.2 lb = 1 kg)
• 10 lb (10 lb 0 oz) / 4.540 kg

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Rudi Barth. See "Data change" for further contributors.

• Other Models

• Here you find 38 models, 33 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Keithley Instruments Inc.; Cleveland (OH)